Pith Number

pith:3DYZ7JIN

pith:1996:3DYZ7JINDHQ2XTDPBPRU3FAMWS

not attested not anchored not stored refs pending

On the parameters of Lewis metric for the Weyl class

F. M. Paiva, L. Herrera, M. F. A. da Silva, N. O. Santos

arxiv:gr-qc/9607056 v1 · 1996-07-23 · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3DYZ7JINDHQ2XTDPBPRU3FAMWS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:39:19.326351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8f19fa50d19e1abcc6f0be34d940cb497bd2342aa14d062fdae6f3b7bea2738

Aliases

arxiv: gr-qc/9607056 · arxiv_version: gr-qc/9607056v1 · doi: 10.48550/arxiv.gr-qc/9607056 · pith_short_12: 3DYZ7JINDHQ2 · pith_short_16: 3DYZ7JINDHQ2XTDP · pith_short_8: 3DYZ7JIN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3DYZ7JINDHQ2XTDPBPRU3FAMWS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d8f19fa50d19e1abcc6f0be34d940cb497bd2342aa14d062fdae6f3b7bea2738

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74a8dc8f94746ac0faefdd12d2b6afe87483a07d57f83010c50f69e2222d34fc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1996-07-23T17:32:34Z",
    "title_canon_sha256": "95b8b213934b83e085b34cf79cee47a603209fbfc396cae47a2e8e5e47c3d283"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9607056",
    "kind": "arxiv",
    "version": 1
  }
}